I'm using SGP Leinwand
Using SGP LEINWAND. And pretty sure that it's really the best case for any tablet pc. Ergonomically as well as saving rich and respect look all the time it's being used. Save optically original thickness, does not enlarge the tab, does not make it more massive, very hard and easy installing back side will protect the tab for very long time, and may pulled off in second if necessary. The best leather quality ever seen used in cases. However the price, but having no alternative it's acceptable.